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Anit [1.1K]
3 years ago
7

Pls help this is for a hard test 30 Points!!!! Describe the life cycle of a Human. Make sure to use atleast 4 stages and write i

n complete sentences
Biology
1 answer:
liraira [26]3 years ago
3 0

Answer:

Different researchers break the life cycle of humans into different number of stages. The life cycle of the humans can be categorized into:

Pregnancy: During pregnancy, an embryo is formed from a zygote. Then, eventually a fetus is formed.

Infancy: Infancy can be described as the earliest period after a child is born.

Childhood: The age where the child starts to learn from his environment.

Puberty: The beginning of adolescence is known as puberty. It is the time when various hormonal changes occur.

Adolescence: The late teen ages.

Adulthood: The age when the person has passed the teen ages.

Old age: People above the age of fifty.

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NEED HELP QUICK!!
blsea [12.9K]

Explanation:

  1. In mechanical digestion, the teeth grind food and break it in to smaller parts.
  2. Churning and the enzyme pepsin break down protein in the stomach.
  3. The pancreas releases the enzymes trypsin and chymotrypsin.
  4. Trypsin and chymotrypsin act on the proteins to break them down in the duodenum.
  5. Amino acids are absorbed by the capillaries in the jejunum.
  6. Amino acids enter the bloodstream and are circulated throughout the body.

Further Explanation:

Food is chemically and mechanically broken down into into smaller particles. This begins in the mouth, where food is mechanically crushed by the teeth, and mixed with saliva to allow water based enzymes like lingual lipase to work;- it's then transported to the stomach via the esophagus. Next in the stomach the enzyme gastric lipase acts on lipids, breaking them up into their components.

In the stomach, the enzyme pepsin breaks proteins, like those found in salmon, into smaller peptides by splitting the peptide bonds holding the proteins together. In the stomach, the enzyme pepsin breaks proteins, into smaller peptides by splitting the peptide bonds holding the proteins together.

The duodenum processes these newly-formed peptide chains or polypeptides, into smaller ones, through the enzyme action of elastase, trypsin and chymotrypsin; these are produced in the pancreas. Peptidases convert these fragments into amino acids for absorption into the bloodstream via the small intestines.

After digestion, the process of absorption occurs within villi of the small intestine; this occurs within the jejenum. Villi are small finger-like projections from epithelial cells of the small intestine; due to the projections, they have increased surface areas for absorption. Absorption involves several processes such as:

  • endocytosis
  • passive diffusion
  • facilitated diffusion
  • active transport
  • secondary active transport (co transport)

The nutrients are then taken up into the bloodstream via capillaries, and circulated through the body

Learn more about digestion at brainly.com/question/12328001

Learn more about Fats and calories at brainly.com/question/10071175

Learn more about ATP formation at brainly.com/question/7442284

#LearnWithBrainly

6 0
3 years ago
Based on radiometric dating, the oldest rocks scientists have found on Earth are 4.6 billion years old, but not ALL rocks are th
natita [175]

Answer:

The answer to your question is below

Explanation:

Because similar to living things, some rocks are formed and it takes a long period to degrade them. During this period new rocks are born, some of these rocks can react with some compounds of the environment and can form new rocks or can be degraded.

What I try to say is that rock formation takes a lot of time and while some rocks disappear new rocks are created.

6 0
3 years ago
Which is a difference between plant populations in primary succession and secondary succession?
zalisa [80]

Answer:

C.  Pioneer species in primary succession only grow in aquatic environments, while pioneer species in secondary succession only grow on land.

Hope I Helped

6 0
3 years ago
When it rains, rainwater soaks into the ground and puts pressure on the existing water in the ground, forcing some o
nika2105 [10]

Answer:

When you said forcing some o what does o represent?

Explanation:?

7 0
3 years ago
Read 2 more answers
The DNA is GGTAGGAAACCC. What is the tRNA?
vlada-n [284]

mRNA would be CCAUCCUUUGGG

tRNA would be   GGUAGGAAACCC

6 0
3 years ago
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